Self-interacting dark matter

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In astrophysics, self-interacting dark matter (SIDM) is a hypothetical form of dark matter consisting of particles with strong[clarification needed] self-interactions. This type of dark matter was postulated in 2000 to resolve a number of conflicts between observations and simulations (of collisionless cold dark matter) on the galactic scale and smaller.[1][2] It was also used to explain the 2015 observations of ESO 146-5 the core of the Abell 3827 galaxy cluster.[3]

Self-interacting dark matter has also been postulated as an explanation for the DAMA annual modulation signal.[4][5][3]

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References[edit]

  1. ^ Spergel, David N.; Steinhardt, Paul J. (24 April 2000). "Observational evidence for self-interacting cold dark matter". Physical Review Letters. 84 (17): 3760–3763. Bibcode:2000PhRvL..84.3760S. PMID 11019199. arXiv:astro-ph/9909386Freely accessible. doi:10.1103/PhysRevLett.84.3760. 
  2. ^ Wandelt, Benjamin D.; Davé, Romeel; Farrar, Glennys R.; McGuire, Patrick C.; Spergel, David N.; Steinhardt, Paul J. (2000). Self-Interacting Dark Matter (PDF). Dark Matter. Marina del Rey. arXiv:astro-ph/0006344Freely accessible. 
  3. ^ a b Richard Massey; et al. (June 2015). "The behaviour of dark matter associated with four bright cluster galaxies in the 10 kpc core of Abell 3827". Monthly Notices of the Royal Astronomical Society. 449 (4P): 3393–3406. Bibcode:2015MNRAS.449.3393M. arXiv:1504.03388Freely accessible. doi:10.1093/mnras/stv467.  commentary The Possible First Signs of Self-interacting Dark Matter
  4. ^ Mitra, Saibal (15 June 2005). "Has DAMA detected self-interacting dark matter?". Physical Review D. 71 (12): 121302. Bibcode:2005PhRvD..71l1302M. arXiv:astro-ph/0409121Freely accessible. doi:10.1103/PhysRevD.71.121302. 
  5. ^ Moskowitz, Clara (20 April 2015). "Dark Matter May Feel a "Dark Force" That the Rest of the Universe Does Not". Scientific American. 

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